New to Java

Hi i have encounter this problem when i compile my java file
This is my test.java

public class test 
	{
		  private String s1= "Happy", s2= "Happy2", s3, s4;
		  private String i,toy,castille;
		  public test()
		  {
			System.out.println("Inside Bath");
		  }
		
		  public String toString() 
		  {
    			if(s4 == null) // Delayed initialization:
      		s4 = "Joy";
    			return
      		"s1 = " + s1 + "\n" +
      		"s2 = " + s2 + "\n" +
      		"s3 = " + s3 + "\n" +
      		"s4 = " + s4 + "\n" +
      		"i = " + i + "\n" +
      		"toy = " + toy + "\n" +
      		"castille = " + castille;
  		  }	
	


		public static void main(String[] args) 
		{
			test b = new test();
    			System.out.println(b);
  		}
	}

Error i received was:
C:\>javac test.java
test.java:1: error while writing test: test.class (Access is denied)
public class test
^
1 error

What is the problem with the code?
Thanks